Once known for its horse-powered knife sharpening, this 200-year-old shop offers an array of blades and hard-to-find culinary tools.

A large statue of Pope Gregory XIII in Bologna was disguised as Saint Petronius to avoid destruction.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

This building features dozens of faces along its facade, although one is a bit chilling.

This zoological museum began as the first great curiosity cabinet.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

This little-known national museum houses over 40,000 works of art from across the world.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

In addition to showing films, this one-screen arthouse cinema from the late 1940s is a museum of old film equipment.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

An exquisite collection of fairytale conveyances that puts most car museums to shame.

Ring the bell to enter a bar that looks equal parts museum and old curiosity shop.

It was once the base for a series of domestic terror attacks.

This groundbreaking 16th-century map is known as "America's birth certificate."

This statue of the "father of television" stands prominently in the United States Capitol.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

Amid the sprawling Defense Intelligence Agency Headquarters is one of Washington's least accessible museums.

Go take a picture with the inventor of the daguerreotype photographic process.

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

The walls of the iconic dome are hollow and have a secret stairway.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.